This too shall pass! A few weeks can make a tremendous difference with a baby that age!
I battled with my EBF daughters to get them to take a bottle, to no avail! With DD1, I was on a mission, as back then we only got 18 weeks' maternity leave! My GP did sign me off longer. In the end, she eventually took to the bottle and still drank the bloody thing until she was 4 at bedtime only. DD2 was more easygoing but didn't like the bottle either. They went to creche drinking maybe 2ozs bottle but they did drink from a sippy cup which is what I'd recommend to you.
I wish I had never bothered with the bottle! DS wouldn't entertain it at all. I gave up. He used a sippy cup and was on solids, I went back to work when he was 10 months. I co-slept with him until he was 4 (I loved it!) and many a night he was just waking up and basically helping himself, while I slept! I was 42, working fulltime, 2 older kids, had started a Masters when I went back to work, and I was shattered! Co-sleeping got me the maximum amount of sleep! At 22 months he just stopped breastfeeding and started sleeping through.
He was a demon for getting him to sleep on his own. I tried the 'pick up put down' method. One night I picked him up and put him down 69 times before I caved in. Will never forget it and he is nearly 15!
I did start moving further away each night though, first the end of the bed, then just outside the door, then along the landing, and eventually, it did work!
You could also try keeping him up later at night so your DH can spend some more time with him too.
You will work it out!
BTW DS co-slept with me until he was 4. I moved him into his own room before he started school. He was perfectly content! Don't listen to all that crap about, "you will never get them in their own room"!